From 5b0b2df48b0d84086c0050628e95bd93eca94a38 Mon Sep 17 00:00:00 2001
From: Jacob Bachmeyer <jcb@gnu.org>
Date: Tue, 29 Nov 2022 23:08:42 -0600
Subject: Add tests for mixed C/C++ unit test library usage

---
 ChangeLog                             |  7 +++-
 Makefile.am                           |  4 +-
 Makefile.in                           | 19 ++++++++-
 testsuite/libdejagnu/unit-ccxxmix.cxx | 78 +++++++++++++++++++++++++++++++++++
 testsuite/libdejagnu/unit.exp         |  6 +++
 5 files changed, 111 insertions(+), 3 deletions(-)
 create mode 100644 testsuite/libdejagnu/unit-ccxxmix.cxx

diff --git a/ChangeLog b/ChangeLog
index 693f077..ce4cdc6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2022-11-29  Jacob Bachmeyer  <jcb@gnu.org>
 
+	* Makefile.in: Regenerate.
+	* Makefile.am (check_PROGRAMS): Add testsuite/libdejagnu/unit-ccxxmix.
+	(testsuite_libdejagnu_unit_ccxxmix_SOURCES): Add.
+	* testsuite/libdejagnu/unit.exp: Add tests for C/C++ mixed usage.
+	* testsuite/libdejagnu/unit-ccxxmix.cxx: New file.
+
 	* testsuite/libdejagnu/unit.exp: Add note that tests for the
 	framework side of the unit testing protocol are located in
 	testsuite/runtest.main/stats.exp and its nested testsuite.
@@ -17,7 +23,6 @@
 	* Makefile.am (check_PROGRAMS): Add testsuite/libdejagnu/unit-cxx.
 	(testsuite_libdejagnu_unit_cxx_SOURCES): Add.
 	* testsuite/libdejagnu/unit.exp: Add tests for C++ unit test API.
-
 	* testsuite/libdejagnu/unit-cxx.cxx: New file.
 
 	* dejagnu.h (TestState::totals): Emit header line, like the C version.
diff --git a/Makefile.am b/Makefile.am
index 41243c8..41f8579 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -232,9 +232,11 @@ RUNTEST = ${top_srcdir}/runtest
 AM_CPPFLAGS = -I$(top_srcdir)
 check_PROGRAMS = \
 	testsuite/libdejagnu/unit-c \
-	testsuite/libdejagnu/unit-cxx
+	testsuite/libdejagnu/unit-cxx \
+	testsuite/libdejagnu/unit-ccxxmix
 testsuite_libdejagnu_unit_c_SOURCES = testsuite/libdejagnu/unit-c.c
 testsuite_libdejagnu_unit_cxx_SOURCES = testsuite/libdejagnu/unit-cxx.cxx
+testsuite_libdejagnu_unit_ccxxmix_SOURCES = testsuite/libdejagnu/unit-ccxxmix.cxx
 
 # Documentation.
 
diff --git a/Makefile.in b/Makefile.in
index cdf958d..f6965a5 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -109,7 +109,8 @@ NORMAL_UNINSTALL = :
 PRE_UNINSTALL = :
 POST_UNINSTALL = :
 check_PROGRAMS = testsuite/libdejagnu/unit-c$(EXEEXT) \
-	testsuite/libdejagnu/unit-cxx$(EXEEXT)
+	testsuite/libdejagnu/unit-cxx$(EXEEXT) \
+	testsuite/libdejagnu/unit-ccxxmix$(EXEEXT)
 subdir = .
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/configure.ac
@@ -129,6 +130,11 @@ am_testsuite_libdejagnu_unit_c_OBJECTS =  \
 testsuite_libdejagnu_unit_c_OBJECTS =  \
 	$(am_testsuite_libdejagnu_unit_c_OBJECTS)
 testsuite_libdejagnu_unit_c_LDADD = $(LDADD)
+am_testsuite_libdejagnu_unit_ccxxmix_OBJECTS =  \
+	testsuite/libdejagnu/unit-ccxxmix.$(OBJEXT)
+testsuite_libdejagnu_unit_ccxxmix_OBJECTS =  \
+	$(am_testsuite_libdejagnu_unit_ccxxmix_OBJECTS)
+testsuite_libdejagnu_unit_ccxxmix_LDADD = $(LDADD)
 am_testsuite_libdejagnu_unit_cxx_OBJECTS =  \
 	testsuite/libdejagnu/unit-cxx.$(OBJEXT)
 testsuite_libdejagnu_unit_cxx_OBJECTS =  \
@@ -209,8 +215,10 @@ am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
 am__v_CXXLD_0 = @echo "  CXXLD   " $@;
 am__v_CXXLD_1 = 
 SOURCES = $(testsuite_libdejagnu_unit_c_SOURCES) \
+	$(testsuite_libdejagnu_unit_ccxxmix_SOURCES) \
 	$(testsuite_libdejagnu_unit_cxx_SOURCES)
 DIST_SOURCES = $(testsuite_libdejagnu_unit_c_SOURCES) \
+	$(testsuite_libdejagnu_unit_ccxxmix_SOURCES) \
 	$(testsuite_libdejagnu_unit_cxx_SOURCES)
 AM_V_DVIPS = $(am__v_DVIPS_@AM_V@)
 am__v_DVIPS_ = $(am__v_DVIPS_@AM_DEFAULT_V@)
@@ -593,6 +601,7 @@ RUNTEST = ${top_srcdir}/runtest
 AM_CPPFLAGS = -I$(top_srcdir)
 testsuite_libdejagnu_unit_c_SOURCES = testsuite/libdejagnu/unit-c.c
 testsuite_libdejagnu_unit_cxx_SOURCES = testsuite/libdejagnu/unit-cxx.cxx
+testsuite_libdejagnu_unit_ccxxmix_SOURCES = testsuite/libdejagnu/unit-ccxxmix.cxx
 
 # Documentation.
 TEXINFO_TEX = doc/texinfo.tex
@@ -656,6 +665,13 @@ testsuite/libdejagnu/unit-c.$(OBJEXT):  \
 testsuite/libdejagnu/unit-c$(EXEEXT): $(testsuite_libdejagnu_unit_c_OBJECTS) $(testsuite_libdejagnu_unit_c_DEPENDENCIES) $(EXTRA_testsuite_libdejagnu_unit_c_DEPENDENCIES) testsuite/libdejagnu/$(am__dirstamp)
 	@rm -f testsuite/libdejagnu/unit-c$(EXEEXT)
 	$(AM_V_CCLD)$(LINK) $(testsuite_libdejagnu_unit_c_OBJECTS) $(testsuite_libdejagnu_unit_c_LDADD) $(LIBS)
+testsuite/libdejagnu/unit-ccxxmix.$(OBJEXT):  \
+	testsuite/libdejagnu/$(am__dirstamp) \
+	testsuite/libdejagnu/$(DEPDIR)/$(am__dirstamp)
+
+testsuite/libdejagnu/unit-ccxxmix$(EXEEXT): $(testsuite_libdejagnu_unit_ccxxmix_OBJECTS) $(testsuite_libdejagnu_unit_ccxxmix_DEPENDENCIES) $(EXTRA_testsuite_libdejagnu_unit_ccxxmix_DEPENDENCIES) testsuite/libdejagnu/$(am__dirstamp)
+	@rm -f testsuite/libdejagnu/unit-ccxxmix$(EXEEXT)
+	$(AM_V_CXXLD)$(CXXLINK) $(testsuite_libdejagnu_unit_ccxxmix_OBJECTS) $(testsuite_libdejagnu_unit_ccxxmix_LDADD) $(LIBS)
 testsuite/libdejagnu/unit-cxx.$(OBJEXT):  \
 	testsuite/libdejagnu/$(am__dirstamp) \
 	testsuite/libdejagnu/$(DEPDIR)/$(am__dirstamp)
@@ -742,6 +758,7 @@ distclean-compile:
 	-rm -f *.tab.c
 
 @AMDEP_TRUE@@am__include@ @am__quote@testsuite/libdejagnu/$(DEPDIR)/unit-c.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@testsuite/libdejagnu/$(DEPDIR)/unit-ccxxmix.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@testsuite/libdejagnu/$(DEPDIR)/unit-cxx.Po@am__quote@
 
 .c.o:
diff --git a/testsuite/libdejagnu/unit-ccxxmix.cxx b/testsuite/libdejagnu/unit-ccxxmix.cxx
new file mode 100644
index 0000000..a57b073
--- /dev/null
+++ b/testsuite/libdejagnu/unit-ccxxmix.cxx
@@ -0,0 +1,78 @@
+// Exerciser for Dejagnu C/C++ unit test support library mixed usage
+//
+// Copyright (C) 2022 Free Software Foundation, Inc.
+//
+// This file is part of DejaGnu.
+//
+// DejaGnu is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+//
+// DejaGnu is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with DejaGnu; if not, write to the Free Software Foundation,
+// Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+//
+// This file was written by Jacob Bachmeyer.
+
+// This version of the program allows verifying that the shared counters
+// between the C API and the C++ API really are shared as documented.
+
+#include <stdio.h>
+#include <string.h>
+
+#include <cstring>
+#include <iostream>
+
+#include "dejagnu.h"
+
+TestState DGT;
+
+int
+main(int argc, char ** argv)
+{
+  if (argc < 2) {
+    std::cerr <<"usage: " <<argv[0] <<" <test name>..."<<std::endl
+	      <<"see source for details" <<std::endl;
+    return 2;
+  }
+
+  for (int i = 1; i < argc; i++ ) {
+    if (i & 1) { // alternate with each test on the command line
+      if (!std::strcmp("pass", argv[i]))              DGT.pass("test");
+      else if (!std::strcmp("xpass", argv[i]))        DGT.xpass("test");
+      else if (!std::strcmp("fail", argv[i]))         DGT.fail("test");
+      else if (!std::strcmp("xfail", argv[i]))        DGT.xfail("test");
+      else if (!std::strcmp("untested", argv[i]))     DGT.untested("test");
+      else if (!std::strcmp("unresolved", argv[i]))   DGT.unresolved("test");
+      else if (!std::strcmp("unsupported", argv[i]))  DGT.unsupported("test");
+      else if (!std::strcmp("note", argv[i]))         DGT.note("test");
+      else {
+	std::cerr <<argv[0] <<": unknown test `" <<argv[i] <<"'" <<std::endl;
+	return 2;
+      }
+    } else { // use C API for every other test
+      if (!strcmp("pass", argv[i]))                   pass("test");
+      else if (!strcmp("xpass", argv[i]))             xpass("test");
+      else if (!strcmp("fail", argv[i]))              fail("test");
+      else if (!strcmp("xfail", argv[i]))             xfail("test");
+      else if (!strcmp("untested", argv[i]))          untested("test");
+      else if (!strcmp("unresolved", argv[i]))        unresolved("test");
+      else if (!strcmp("unsupported", argv[i]))       unsupported("test");
+      else if (!strcmp("note", argv[i]))              note("test");
+      else {
+	fprintf(stderr, "%s: unknown test `%s'\n", argv[0], argv[i]);
+	return 2;
+      }
+    }
+  }
+
+  return 0;
+}
+
+// EOF
diff --git a/testsuite/libdejagnu/unit.exp b/testsuite/libdejagnu/unit.exp
index abbcf8a..34da7b4 100644
--- a/testsuite/libdejagnu/unit.exp
+++ b/testsuite/libdejagnu/unit.exp
@@ -136,3 +136,9 @@ foreach language {c cxx} {
 	note pass fail xpass xfail untested unresolved unsupported
     }
 }
+
+test_libdejagnu_unit ccxxmix {
+    {pass pass xpass xfail xfail xpass}
+    {fail fail xfail xpass xpass xfail}
+    {untested unresolved unsupported untested unresolved unsupported}
+}
-- 
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